In my previous post, I revealed my top 5 hits from Programming 1: Essentials. Now that you’ve gotten into the programming groove, I’ll share my greatest hits from Programming 2: Data Manipulation Techniques; using real song titles to describe each …
Category: SAS
Specify the colors of groups in SAS statistical graphics
Sometimes a graph is more interpretable if you assign specific colors to categories. For example, if you are graphing the number of Olympic medals won by various countries at the 2012 London Olympics, you might want to assign the colors gold, silver, and bronze to represent first-, second-, and third-place […]
Mutation Testing
I’ve published a number of articles on testing in the past, and I thought I had a decent awareness and knowledge of the subject. But, as they say, every day is a learning day and I came across a new testing technique recently: Mutation Testing.
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Incorporate SAS/IML to Base SAS?
Since SAS 9.3, ODS Graphics was moved into Base SAS, which means the SAS/Graph license is not needed anymore to access ODS Graphics facilities. It’s definitely nice, but from customers’ point of view, it is not critical necessary: since the “minimum set of SAS system” in most SAS sessions includes the Base SAS, SAS/Stat and […]
Two incredible days in Las Vegas
From the pyramids of ancient Egypt, through the classical architecture of Greece and Rome, to the elegance of 19th century Paris; Las Vegas takes the best from history and brings it into one place. In the same way, Analytics 2012 has brought the best…
NOTE: Custom Tasks, Beyond the Basics with Enterprise Guide
Stretching my Beyond the Basics of EG series by one more posting… The ability to create your own (custom) tasks in Enterprise Guide certainly takes EG beyond the basics. I’ve previously mentioned my disappointment (here and here) at the lack of 3rd-p…
Example 10.6: Should Poisson regression ever be used? Negative binomial vs. Poisson regression
In practice, we often find that count data is not well modeled by Poisson regression, though Poisson models are often presented as the natural approach for such data. In contrast, the negative binomial regression model is much more flexible and is the…
Unconventional typographical conventions
I’ve been finishing up just a bit of the “boilerplate” content for my forthcoming book about custom tasks. One of the final tasks is to write the introduction, also known as the “About this Book” section. SAS Press offers a template with examples of a few essential topics to address […]